Eastwood, Lucci, turtles guess who's on MPT?

Today's TV

MPT invites you to leave Maryland behind for a night and travel to the Galapagos Islands, without setting foot out the door. I'd take them up on it.

"Bronco Billy" (8 p.m.-10 p.m., WNUV, Channel 54) -- Great fun, as Clint Eastwood plays the leader of a poor-man's Wild West show, and Sondra Locke plays the spoiled rich gal who comes to love him anyway. It's not the best film Clint has ever made, but possibly the most pleasant.

"Galapagos: A World Apart" (8 p.m.-11 p.m., MPT, Channels 22 and 67) -- Is there a more fascinating part of the world than the Galapagos Islands? And since most of us will never be able to visit there, this three-hour documentary is the next best thing.

"The Legend of the Ruby Silver" (9 p.m.-11 p.m., WMAR, Channel 2) -- Four people get caught up in the lure of gold as they work a claim at a Canadian mountain. Considering one of them is Mitch Belcher from "Hill Street Blues" (Bruce Weitz), this may not be an argument in which you want to get caught up. ABC.

"Walker, Texas Ranger" (10 p.m.-11 p.m., WJZ, Channel 13) -- Our man Walker (Chuck Norris) goes undercover as a hit man inside a prison in an effort to gather information about a guy who may have killed two of his fellow rangers. Expect lots of steely looks and some seriously kicked butt. (Note: The start could be delayed if the Orioles-Yankees game runs long.) CBS.

Cable

"The Substitute Wife" (8 p.m.-10 p.m., Lifetime) -- Peter Weller, a farmer in the old West, finds himself wedded to both Lea Thompson and Farrah Fawcett, with their blessing. Poor guy.

"Absence of Malice" (10: 50 p.m.-1: 20 a.m., TBS) -- Paul Newman plays a businessman wrongly implicated in a crime by newspaper reporter Sally Field, who herself is being used as a pawn by overzealous legal eagles trying to crack the case. Field is good, Newman is better, and the movie zips along at a fine pace.

Tomorrow

"Dateline NBC" (7 p.m.-8 p.m., WBAL, Channel 11) -- Leon Fleisher was one of the world's greatest pianists until fate played an unusually cruel trick on him -- and the world -- some 30 years ago in the form of a debilitating injury to his right hand. Jane Pauley talks to Fleisher about his career, his injury and his recent attempts at a comeback.